Multi-channel stem cell classifier

Abstract

The utility model relates to the technical field of stem cell extraction, in particular to a multi-channel stem cell classifier, which is convenient to take test tubes, improves the working efficiency, is convenient to overhaul and maintain, and ensures the service life. Comprising a box body, a bottom frame, friction supporting legs, a supporting rotary table, a driving assembly, a limiting guide assembly, a push-out assembly and a limiting assembly, the bottom frame is fixedly installed at the bottom of the box body, the friction supporting legs are fixedly installed at the four corners of the bottom of the bottom frame correspondingly, and the supporting rotary table is rotatably installed at the left end of the top of the box body through the limiting guide assembly; a push-out assembly is installed at the bottom of the containing channel, a driving assembly is installed in the box and connected with the bottom of the supporting rotary table, and a limiting assembly is installed at the top of the box.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of stem cell extraction, in particular to a multi-channel stem cell sorter. BACKGROUND

[0002] Stem cells are a kind of cells with self-replication and differentiation potential, which can constantly self-renew and differentiate into various different types of cells under certain conditions, including nerve cells, myocardial cells, hepatocytes, etc. Stem cells have wide application value in the medical field, such as treating diseases, tissue regeneration, etc. In the process of stem cell extraction, separation and extraction are generally carried out. The prior art publication No. CN210193833U proposes a high-efficiency stem cell separation device, which comprises a main body and a driving motor, a cover plate is arranged above the main body, and the cover plate is connected with the main body through a first rotating shaft, threaded rods are penetrated through the two sides of the cover plate, the ends of the threaded rods are arranged in threaded grooves, the threaded grooves are opened on the upper surfaces of the two sides of the main body, the driving motor is arranged in the interior of the main body, a second rotating shaft is arranged above the driving motor, the second rotating shaft is penetrated through the middle part of the upper surface of the main body, a rotating rod is arranged above the second rotating shaft, the rotating rod is penetrated through a sleeve, a clamping plate is arranged on the upper side of the outer side of the sleeve, and a fixed plate is arranged on the lower side of the outer side of the sleeve. However, the motor is usually not easy to take out for maintenance after being fixed in the centrifugal device, which affects the subsequent use of the centrifugal device. SUMMARY

[0003] To solve the above technical problems, the utility model provides a multi-channel stem cell sorter which is convenient to take the test tube, improves work efficiency, is convenient to overhaul and maintain, and guarantees service life.

[0004] The utility model discloses a multi-channel stem cell sorter, which comprises a box body, a bottom frame, a friction support leg, a supporting turntable, a driving assembly, a limiting guide assembly, a pushing-out assembly and a limiting assembly, the bottom frame is fixedly installed at the bottom of the box body, the friction support legs are fixedly installed at the four corners of the bottom of the bottom frame, the supporting turntable is rotatably installed at the left end of the top of the box body through the limiting guide assembly, a plurality of placing channels are arranged in the supporting turntable, the pushing-out assembly is installed at the bottom of the placing channel, the driving assembly is installed in the box body, the driving assembly is connected with the bottom of the supporting turntable, and the limiting assembly is installed at the top of the box body.

[0005] Preferably, the driving assembly comprises a conical turntable, a support plate, a rotating shaft, a transmission gear, two slide rails, a sliding seat, a transmission, a driving motor, a driving gear and a fixed plate, the conical turntable is fixedly connected to the bottom of the support turntable, the bottom of the conical turntable is fixedly connected with the rotating shaft, the rotating shaft is rotatably installed at the inner bottom end of the box body, the support plate is fixedly installed on the inner wall of the left side wall of the box body, the rotating shaft is rotatably installed at the right end of the support plate, the transmission gear is fixedly installed on the outer wall of the rotating shaft, the two slide rails are fixedly installed at the inner bottom end of the box body, the sliding seat is slidably installed on the slide rails, the transmission is installed on the top of the sliding seat, the output end of the transmission is provided with the driving gear, the driving gear is engaged with the transmission gear, the transmission gear is provided with a positioning groove in the middle of the outer wall, the driving gear is provided with a positioning ring on the outer wall, the output end of the transmission is connected with the output end of the driving motor, the driving motor is installed on the top right side of the sliding seat, and the fixed plate is installed on the right side wall of the sliding seat and can be connected with the inner bottom end of the box body through screws; the driving motor is started to drive the driving gear to rotate through the transmission, the driving gear drives the rotating shaft to rotate through the transmission gear, so that the support turntable is driven to rotate, the conical turntable can increase the connection area of the rotating shaft and the bottom of the support turntable, the rotating shaft can be supported through the support plate to ensure the stability during rotation of the rotating shaft, the positioning ring on the driving gear and the positioning groove on the transmission gear can cooperate to ensure the stability of the engagement between the transmission gear and the driving gear, the screws are loosened, the sliding seat is pulled to drive the transmission and the driving motor to move out of the box body, so that the equipment can be easily maintained and the service life is ensured.

[0006] Preferably, the limiting and guiding assembly comprises a guiding turn ring, a hanging turn ring and a control block, a rotating groove is formed in the top left side of the box body, a guiding rotating groove is formed in the inner wall of the rotating groove, a hanging sliding groove is formed in the lower part of the guiding rotating groove, the support turntable is rotatably installed in the rotating groove, the guiding turn ring is rotatably installed in the guiding rotating groove and is fixedly installed on the outer wall of the upper part of the support turntable, the hanging turn ring is rotatably installed in the hanging sliding groove and is fixedly installed on the outer wall of the lower part of the fixed plate, and the control block is installed on the upper part of the front end of the box body; the control block can be used for conveniently operating the equipment and improving the convenience, the guiding turn ring is driven to rotate in the guiding rotating groove when the support turntable rotates, the support turntable is guided, the hanging turn ring is driven to rotate in the hanging sliding groove, the support turntable is supported and limited, and the stability is ensured.

[0007] Preferably, the pushing assembly comprises a plurality of telescopic blocks, a plurality of pushing springs, a plurality of bases, a plurality of limiting columns, a plurality of sliding rings, a plurality of springs and a plurality of limiting blocks, the bottom of the placement channel of the supporting turntable is provided with a pushing cavity, the telescopic block is slidingly installed in the pushing cavity, the top of the telescopic block is provided with a positioning block, a plurality of round holes are axially formed in the bottom of the telescopic block, the pushing spring is installed in the round hole, the bottom of the pushing spring is connected with the bottom of the pushing cavity, a cylindrical hole is formed in the middle of the bottom end of the telescopic block, the base is fixedly installed in the middle of the bottom end of the pushing cavity, the limiting column is fixedly installed on the top of the base, the top of the limiting column is provided with an arc block, the sliding ring is slidingly installed on the outer wall of the limiting column, the lower part of the limiting column is provided with a slope, the bottom of the limiting column is provided with a receiving groove matched with the upper part of the sliding ring, the telescopic slot is symmetrically formed in the telescopic block about the cylindrical hole, the limiting block is slidingly installed in the telescopic slot, the spring is installed in the telescopic slot, and one end of the spring is connected with the limiting block; the test tube is placed in the placement channel, the bottom of the test tube is in contact with the positioning block, the telescopic block is pressed to move downward in the pushing cavity, the limiting block is in contact with the upper part of the limiting column, the spring is compressed, when the limiting block moves below the upper part of the limiting column, the spring pushes the limiting block to extend and be clamped below the top of the limiting column, after separation, the test tube is pressed downward, the telescopic block continues to move downward, the limiting block slides on the sliding ring, moves to the lower part of the sliding ring, and then the test tube is released, the pushing spring pushes the telescopic block to move upward, the limiting block drives the sliding ring to slide on the outer wall of the limiting column, the sliding ring is combined with the upper part of the limiting column, and the limiting block slides on the outer wall of the upper part of the sliding ring and the limiting column, so that the test tube is pushed out of the placement channel, the test tube is convenient to take, and the working efficiency is improved.

[0008] Preferably, the limiting assembly comprises a cover plate, a magnet strip, a circular cover plate, a rotating shaft seat, a second guide rotating ring and a plurality of rubber blocks, the cover plate is hingedly installed at the top rear end of the box body, the front end of the cover plate is rotatably provided with the circular cover plate through the rotating shaft seat, the circular cover plate corresponds to the position of the supporting turntable, a plurality of rubber blocks are installed on the front end of the circular cover plate corresponding to the placement channel, the front end of the cover plate is provided with a supporting rotating groove, the rear side wall of the circular cover plate is fixedly installed with the second guide rotating ring, the second guide rotating ring is rotatably installed in the supporting rotating groove, the front end of the cover plate is provided with the magnet strip, the top of the box body is provided with an iron sheet matched with the magnet strip, and handles are arranged on the outer walls of the left and right sides of the cover plate; after the test tube is placed, the cover plate is covered on the top of the box body through the handle, the magnet strip is in contact with the patch to ensure the sealing between the cover plate and the box body, the cover plate is covered on the top of the box body, so that the circular cover plate drives the rubber blocks to be covered and pressed on the top of the test tube, and when the supporting turntable rotates, the circular cover plate rotates on the cover plate, the rubber blocks drive the second guide rotating ring to rotate in the supporting rotating groove, and the stability is ensured.

[0009] Preferably, it further includes two cabinet doors and a rack, the two cabinet doors are rotatably installed on the left and right sides of the front end of the cabinet through hinges, a handle is arranged on the front end of the cabinet door, heat dissipation grilles are arranged on the left and right end side walls of the cabinet, a rack is installed on the right side of the top of the cabinet, and a plurality of test tube placing holes are formed in the rack; the cabinet front end is opened by rotating the cabinet door through the handle, which is convenient for maintenance, the cabinet interior can be protected through the cabinet door, the cabinet interior can be cooled through the heat dissipation grilles, the cooling effect is improved, and the practicability is improved through the rack.

[0010] Compared with the prior art, the utility model has the advantages that the test tube containing solution and having sealing cover is placed in the placing channel of the support turntable, the top of the test tube is limited through the limiting component, the displacement of the test tube during rotation can be prevented, the stability is guaranteed, the support turntable is driven to rotate through the driving component, the stability of the support turntable during rotation is guaranteed through the limiting guide component, the driving component can be removed in the cabinet, which is convenient for maintenance and guarantees the service life, the test tube can be pushed out through the push-out component, the test tube is convenient to take, and the work efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is the structural schematic diagram of the utility model;

[0012] Figure 2 It is the axonometric structural schematic diagram of the utility model;

[0013] Figure 3 It is the rear three-dimensional structural schematic diagram of the utility model;

[0014] Figure 4 It is the front view cross section structural schematic diagram of the utility model;

[0015] Figure 5 It is the left view cross section structural schematic diagram of the utility model;

[0016] Mark in the drawing: 1, cabinet;2, bottom frame;3, friction support leg;4, support turntable;5, conical turntable;6, support plate;7, rotating shaft;8, transmission gear;9, slide rail;10, slide base;11, transmission;12, driving motor;13, driving gear;14, fixed plate;15, guide rotating ring;16, hang rotating ring;17, control block;18, telescopic block;19, push-out spring;20, base;21, limiting column;22, slip ring;23, spring;24, limiting plug;25, cover plate;26, magnet strip;27, round cover plate;28, rotating shaft seat;29, second guide rotating ring;30, rubber block;31, cabinet door;32, rack. DETAILED DESCRIPTION

[0017] For the convenience of understanding the utility model, the utility model will be described more fully below with reference to the relevant drawings. The utility model can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0018] Embodiment 1

[0019] As Figure 1 、 Figure 2 、 Figure 4 And Figure 5 As shown in the figure, the bottom frame 2 is fixedly installed at the bottom of the box body 1, the friction supporting legs 3 are fixedly installed at the bottom of the bottom frame 2 respectively at four corners, the turning groove is formed at the top left side of the box body 1, the guide turning groove is formed on the inner wall of the turning groove, the hanging sliding groove is formed at the lower part of the guide turning groove, the supporting turntable 4 is rotatably installed in the turning groove, the guide rotating ring 15 is fixedly installed on the outer wall of the supporting turntable 4, the hanging rotating ring 16 is fixedly installed on the outer wall of the fixed plate 14, the hanging rotating ring 16 is rotatably installed in the hanging sliding groove, the control block 17 is installed on the upper part of the front end of the box body 1, the conical turntable 5 is fixedly connected to the bottom of the supporting turntable 4, the rotating shaft 7 is fixedly connected to the bottom of the conical turntable 5, the rotating shaft 7 is rotatably installed at the inner bottom end of the box body 1, the supporting plate 6 is fixedly installed on the inner wall of the left side wall of the box body 1, the rotating shaft 7 is rotatably installed at the right end of the supporting plate 6, the transmission gear 8 is fixedly installed on the outer wall of the rotating shaft 7, the two sliding rails 9 are fixedly installed at the inner bottom end of the box body 1, the sliding seat 10 is slidably installed on the sliding rails 9, the transmission 11 is installed on the top of the sliding seat 10, the driving gear 13 is installed on the output end of the transmission 11, the driving gear 13 is engaged with the transmission gear 8, the transmission gear 8 is provided with the positioning groove on the outer wall, the driving gear 13 is provided with the positioning ring on the outer wall, the output end of the transmission 11 is connected with the output end of the driving motor 12, the driving motor 12 is installed on the top right side of the sliding seat 10, the fixed plate 14 is installed on the right side wall of the sliding seat 10, the fixed plate 14 can be connected with the inner bottom end of the box body 1 through screws, the cover plate 25 is hingedly installed on the top rear end of the box body 1, the circular cover plate 27 is rotatably installed on the front end of the cover plate 25 through the rotating shaft seat 28, the circular cover plate 27 corresponds to the position of the supporting turntable 4, a plurality of rubber blocks 30 are installed on the front end of the circular cover plate 27 corresponding to the placing channel, the cover plate 25 is provided with the supporting turning groove on the front end, the second guide rotating ring 29 is fixedly installed on the rear side wall of the circular cover plate 27 and rotatably installed in the supporting turning groove, the magnet strip 26 is installed on the front end of the cover plate 25, the box body 1 is provided with the iron sheet matched with the magnet strip 26, the handle is arranged on the outer wall of the left and right sides of the cover plate 25;

[0020] After the test tube is placed, the cover plate 25 is covered on the top of the box body 1 through the handle, the magnet strip 26 is in contact with the patch, the sealing between the cover plate 25 and the box body 1 is ensured, after the cover plate 25 is covered on the top of the box body 1, the circular cover plate 27 drives the rubber block 30 to be covered and pressed on the top of the test tube, the circular cover plate 27 is rotated on the cover plate 25 when the support turntable 4 rotates, the rubber block 30 drives the second guide rotating ring 29 to rotate in the support rotating groove, the stability is ensured, the driving motor 12 is started to drive the driving gear 13 to rotate through the speed variator 11, the driving gear 13 drives the rotating shaft 7 to rotate through the transmission gear 8, so that the support turntable 4 is driven to rotate, the conical turntable 5 can increase the connection area of the rotating shaft 7 and the bottom of the support turntable 4, the rotating shaft 7 can be supported through the support plate 6, the stability of the rotating shaft 7 during rotation is ensured, the positioning ring on the driving gear 13 and the positioning groove on the transmission gear 8 are matched, the stability of the meshing between the transmission gear 8 and the driving gear 13 is ensured, the screws are loosened, the slide 10 can drive the speed variator 11 and the driving motor 12 to move out in the box body 1, so that the maintenance is facilitated, the service life is ensured, the control block 17 is convenient for operating the equipment, the convenience is improved, the guide rotating ring 15 is rotated in the guide rotating groove when the support turntable 4 rotates, the support turntable 4 is guided, the hanging rotating ring 16 is rotated in the hanging sliding groove, the support turntable 4 is supported and limited, and the stability is ensured.

[0021] Example 2

[0022] As Figures 3 to 5 shown, on the basis of example 1, the placement channel of the support turntable 4 is provided with a pushing cavity at the bottom, the telescopic block 18 is slidingly installed in the pushing cavity, the telescopic block 18 is provided with a positioning block at the top, a plurality of round holes are axially formed in the bottom of the telescopic block 18, the push-out spring 19 is installed in the round hole, the bottom of the push-out spring 19 is connected with the bottom of the pushing cavity, a cylindrical hole is formed in the middle of the bottom end of the telescopic block 18, the base 20 is fixedly installed in the middle of the bottom end of the pushing cavity, the base 20 is fixedly installed with the limiting column 21 at the top, the limiting column 21 is provided with an arc block at the top, the sliding ring 22 is slidingly installed on the outer wall of the limiting column 21, the limiting column 21 is provided with a slope at the lower part, the limiting column 21 is provided with a storage groove at the bottom, which is matched with the upper part of the sliding ring 22, the telescopic groove is symmetrically formed in the telescopic block 18 about the cylindrical hole, the limiting plug 24 is slidingly installed in the telescopic groove, the spring 23 is installed in the telescopic groove, one end of the spring 23 is connected with the limiting plug 24, the two box doors 31 are rotatably installed on the left and right sides of the front end of the box body 1 through the hinges, the box door 31 is provided with a handle at the front end, the heat dissipation grilles are arranged on the left and right side walls of the box body 1, the placing rack 32 is installed on the right side of the top of the box body 1, a plurality of test tube placing holes are formed in the placing rack 32;

[0023] The test tube is placed in the placement channel, the bottom of the test tube is in contact with the positioning block, the telescopic block 18 is pressed to move downward in the push cavity, the limiting plug 24 is in contact with the upper part of the limiting column 21, the spring 23 is compressed, when the telescopic block 18 moves to the lower part of the limiting column 21, the spring 23 pushes the limiting plug 24 to extend and be clamped below the top of the limiting column 21, after the separation is completed, the test tube is pressed downward, the telescopic block 18 continues to move downward, the limiting plug 24 slides on the sliding ring 22, moves to the lower part of the sliding ring 22, then the test tube is released, the spring 19 pushes the telescopic block 18 to move upward, the limiting plug 24 drives the sliding ring 22 to slide on the outer wall of the limiting column 21, the sliding ring 22 is combined with the upper part of the limiting column 21, the limiting plug 24 slides on the outer wall of the upper part of the limiting column 21 and the sliding ring 22 excessively, so that the test tube is pushed out of the placement channel, the test tube is convenient to take, the working efficiency is improved, the box door 31 is driven to rotate through the handle, the front end of the box body 1 is opened, the maintenance is facilitated, the inside of the box body 1 can be protected through the box door 31, the inside of the box body 1 can be cooled through the heat dissipation grille, the heat dissipation effect is improved, a plurality of test tubes can be placed through the placement rack 32, the practicality is improved.

[0024] As Figures 1 to 5As shown, the multi-channel stem cell sorter of the utility model, when working, the test tube containing solution and with sealing cover is placed in the placement channel of support turntable 4, the test tube is placed in the placement channel, the bottom of the test tube contacts with the positioning block, the telescopic block 18 is pressed to move downward in the pushing cavity, the limiting plug 24 contacts with the upper part of the limiting column 21, the compression spring 23, when moving to the lower part of the upper part of the limiting column 21, the spring 23 pushes the limiting plug 24 to extend and be clamped at the lower side of the top of the limiting column 21, after placement is completed, the cover plate 25 is covered and installed on the top of the box body 1 through the handle, the sealing property between the cover plate 25 and the box body 1 is guaranteed through the contact between the magnet strip 26 and the patch, after the cover plate 25 is covered and installed on the top of the box body 1, the circular cover plate 27 drives the rubber block 30 to cover and press tightly on the top of the test tube, the driving motor 12 is started to drive the driving gear 13 to rotate through the transmission 11, the driving gear 13 drives the rotating shaft 7 to rotate through the transmission gear 8, thereby driving the support turntable 4 to rotate, the conical turntable 5 can increase the connecting area of the rotating shaft 7 and the bottom of the support turntable 4, the rotating shaft 7 can be supported through the support plate 6, the stability of the rotating shaft 7 when rotating is guaranteed, the stability of the meshing between the transmission gear 8 and the driving gear 13 can be guaranteed through the cooperation of the positioning ring on the driving gear 13 and the positioning groove on the transmission gear 8, after separation is completed, the test tube is pressed downward, the telescopic block 18 continues to move downward, the limiting plug 24 slides on the slip ring 22, moves to the lower part of the slip ring 22, then the test tube is released, the spring 19 pushes the telescopic block 18 to move upward, the limiting plug 24 drives the slip ring 22 to slide on the outer wall of the limiting column 21, the slip ring 22 is combined with the upper part of the limiting column 21, the limiting plug 24 slides on the outer wall of the upper part of the slip ring 22 and the limiting column 21 excessively, thereby pushing the test tube out of the placement channel, the test tube is convenient to take, the box door 31 is driven to rotate through the handle, the front end of the box body 1 is opened, the screw is loosened, the transmission 11 and the driving motor 12 can be moved out in the box body 1 through the slide seat 10, thereby being convenient to overhaul and maintain.

[0025] The transmission 11, the driving motor 12 and the control block 17 of the multi-channel stem cell sorter of the utility model are purchased on the market, and the technical personnel in the industry only need to install and operate according to the attached instruction manual, without the technical personnel in the field paying creative labor.

[0026] The preferred embodiments of the utility model are described above, and it should be noted that, for ordinary technical personnel in the technical field, several improvements and modifications can be made without departing from the technical principles of the utility model, and these improvements and modifications should also be regarded as the protection range of the utility model.

Claims

1. A multi-channel stem cell sorter, characterized in that, The package includes a housing (1), a bottom frame (2), friction legs (3), a support turntable (4), a drive assembly, a limit guide assembly, an ejection assembly, and a limit assembly. The bottom frame (2) is fixedly installed at the bottom of the housing (1). Friction legs (3) are fixedly installed at the four corners of the bottom of the bottom frame (2). The support turntable (4) is rotatably installed on the top left end of the housing (1) through the limit guide assembly. Multiple placement channels are provided inside the support turntable (4). An ejection assembly is installed at the bottom of the placement channel. The drive assembly is installed inside the housing (1). The drive assembly is connected to the bottom of the support turntable (4). The limit assembly is installed on the top of the housing (1).

2. The multi-channel stem cell sorter as described in claim 1, characterized in that, The drive assembly includes a conical turntable (5), a support plate (6), a rotating shaft (7), a transmission gear (8), two slide rails (9), a slide block (10), a gearbox (11), a drive motor (12), a drive gear (13), and a fixing plate (14). The conical turntable (5) is fixedly connected to the bottom of the support turntable (4). The bottom of the conical turntable (5) is fixedly connected to the rotating shaft (7). The rotating shaft (7) is rotatably installed inside the bottom of the housing (1). The support plate (6) is fixedly installed on the inner wall of the left side of the housing (1). The rotating shaft (7) is rotatably installed on the right end of the support plate (6). The transmission gear (8) is fixedly installed on the outer wall of the rotating shaft (7). The two slide rails (9) are fixedly installed on the housing. The bottom of the body (1) is slidably mounted on the slide rail (9) at the bottom of the slide (10). The gearbox (11) is mounted on the top of the slide (10). The output end of the gearbox (11) is equipped with a drive gear (13). The drive gear (13) meshes with the transmission gear (8). The middle of the outer wall of the transmission gear (8) is provided with a positioning groove. The outer wall of the drive gear (13) is provided with a positioning ring. The output end of the gearbox (11) is connected to the output end of the drive motor (12). The drive motor (12) is mounted on the top right side of the slide (10). A fixing plate (14) is mounted on the right side wall of the slide (10). The fixing plate (14) can be connected to the bottom of the box (1) by screws.

3. The multi-channel stem cell sorter as described in claim 1, characterized in that, The limiting guide assembly includes a guide ring (15), a mounting ring (16), and a control block (17). A rotating groove is provided on the top left side of the housing (1). A guide groove is provided on the inner wall of the rotating groove. A mounting slide is provided at the bottom of the guide groove. A support turntable (4) is rotatably installed in the rotating groove. A guide ring (15) is fixedly installed on the upper part of the outer wall of the support turntable (4). The guide ring (15) is rotatably installed in the guide groove. A mounting ring (16) is fixedly installed on the lower part of the outer wall of the fixing plate (14). The mounting ring (16) is rotatably installed in the mounting slide. The control block (17) is installed on the upper part of the front end of the housing (1).

4. A multi-channel stem cell sorter as described in claim 1, characterized in that, The ejection assembly includes multiple telescopic blocks (18), multiple sets of ejection springs (19), multiple bases (20), multiple limit posts (21), multiple slip rings (22), multiple sets of springs (23), and multiple limit inserts (24). A push cavity is provided at the bottom of the placement channel supporting the turntable (4). The telescopic blocks (18) are slidably installed within the push cavity. A positioning block is provided on the top of the telescopic blocks (18). Multiple circular holes are axially provided at the bottom of the telescopic blocks (18), and ejection springs (19) are installed within these holes. The bottom of the ejection springs (19) is connected to the bottom of the push cavity. A cylindrical hole is provided in the center of the bottom end of the telescopic blocks (18). The base (20) is fixedly installed in the middle of the bottom of the push cavity. The top of the base (20) is fixedly installed with a limit post (21). The top of the limit post (21) is provided with an arc-shaped block. The slip ring (22) is slidably installed on the outer wall of the limit post (21). The lower part of the limit post (21) is provided with a slope. The bottom of the limit post (21) is provided with a storage groove that matches the upper part of the slip ring (22). The telescopic block (18) is provided with telescopic grooves symmetrically on the left and right sides of the cylindrical hole. The limit insert (24) is slidably installed in the telescopic groove. The spring (23) is installed in the telescopic groove. One end of the spring (23) is connected to the limit insert (24).

5. A multi-channel stem cell sorter as described in claim 1, characterized in that, The limiting components include a cover plate (25), a magnetic strip (26), a circular cover plate (27), a pivot seat (28), a second guide ring (29), and multiple rubber blocks (30). The cover plate (25) is installed at the top rear end of the box (1) via a hinge. The front end of the cover plate (25) is rotatably mounted with a circular cover plate (27) via a pivot seat (28). The circular cover plate (27) corresponds to the position of the support turntable (4). The front end of the circular cover plate (27) is mounted with multiple rubber blocks (30) corresponding to the placement channel. The front end of the cover plate (25) has a support groove. The rear side wall of the circular cover plate (27) is fixedly mounted with a second guide ring (29). The second guide ring (29) is rotatably mounted in the support groove. The front end of the cover plate (25) is mounted with a magnetic strip (26). The top of the box (1) is provided with an iron sheet that matches the magnetic strip (26). The outer walls on the left and right sides of the cover plate (25) are provided with handles.

6. A multi-channel stem cell sorter as described in claim 1, characterized in that, It also includes two boxes (31) and a shelf (32). The two boxes (31) are mounted on the left and right sides of the front end of the box body (1) by hinges. The front end of the boxes (31) is provided with handles. The left and right side walls of the box body (1) are provided with heat dissipation grilles. The shelf (32) is installed on the right side of the top of the box body (1). The shelf (32) has multiple test tube placement holes.

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